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Cisco Bug: CSCsz02572 - 4500 High CPU usage for DAI when QoS is configured

Last Modified

Feb 22, 2014

Products (1)

  • Cisco 4000 Series Routers

Known Affected Releases

12.2(50)SG1

Description (partial)

Symptom:
- CPU utilization on ARP snooping process increases when QoS is configured on the ports in the same vlan

Conditions:
- DAI is enabled
- A port configured with arp snooping trust is receiving some arp packets
- QoS is configured on the ports in the VLAN with DAI enabled.
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